Safari is enabled, not the main browser, but it's still there. Just like the internet Explorer - noone wants to use it, but it's still there ... lurking in the shadows ...
Changing from OneDrive to Disabled does extactly what I would expect. It saves the settings and after the restart, it still is disabled. So that's fine. But now it gets interesting: changing to any other option (except OneDrive) asks me for credentials or the WebDAV parameters. I choose Google Drive for a quick test and everything is working. Changing to OneDrive afterwards again does nothing but saving. Interesting fact: once using OneDrive, nothing works. To "reenable" the feature, I have to disable syncing, Close the application, relaunch and enable syncing again. I'd swear this didn't work just days ago. But let's face it: the "solution" tells me, the problem is sitting right in front of the screen 😉
Nice addition: using OneDrive also disabled the ability to close the application. I had to force quit WorkingHours just to shutdown the macbook. Dropping OneDrive, I can again close the application 😃
Imho this report can be closed. For me it's OK using WebDAV (or stay with google). If you like to further investigate the Problem, I am happy to help. As far as I can see there is no extremely sensible data inside the database. I might upload the database if you provide me with a "secure" option - e.g. E-Mail would be fine, just something more private than this forum 😉.